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UCSF Tested 4,000 in Mission for COVID: Here Are the Results

Revealed a high proportion of previous infections among low-income, essential Latino workers.
By - posted 6/23/2020 No Comment

Thanks to the SF Chronicle for letting us know that UCSF released the final results from the mass testing of nearly 4,000 people in a Mission District in late April – testing both residents of the Mission as well non-resident people who work in the Mission.

According to UCSF, test results show economic factors drove increased transmission in Latinx essential workers and families despite shelter-in-place.

UCSF Covid Study Findings

  • 3,953 tested in 16-square block section of the Mission District
  • 2.1% were actively infected with COVID-19
  • Infection rates were 20x higher in Latinx vs. non-Latinx populations (3.9% vs. 0.2%)
  • 3.1% of residents tested positive for COVID-19 antibodies vs. 7.7% of workers (non-residents)
  • Estimation that 6.1% of all residents were either actively infected or were previously infected.
  • Latinos account for half of SF’s COVID-19 infections despite representing only 15% of the city’s population (per SF Chronicle)

“We find that recent infections in late April were concentrated almost exclusively among low-income Latinx people working frontline jobs, whereas infections earlier in the pandemic affected people more equally across the ethnic and economic spectrum,” said study principal investigator and senior author Diane Havlir, MD, chief of the UCSF Division of HIV, Infectious Diseases and Global Medicine at Zuckerberg San Francisco General Hospital and Trauma Center (ZSFG). 

Read the complete report from UCSF.